Mackie SRM Connect™ gives you complete wireless control over your Mackie SRM V-Class PA System via Bluetooth®. Haven't purchased SRM | V-Class speakers yet but want to try the app? SRM Connect allows you to explore every feature and even emulate connected SRM | V-Class speakers in Demo Mode. Total wireless control from the SRM Connect app • Independent input channel and master levels • 3-band High, Mid & Low channel EQ • Indoor/Outdoor application-specific voicing modes • Front LED Color &